Second monitor shows black screen after turning off and back on

It's a pretty old DVI monitor, when I turn it off and back on right away everything is fine, but if I let it stay off for a few minutes it wont be showing any image when turned on. It doesn't show "no signal" and it shows up in Display settings still, just stays black. Changing refresh rate in macOS makes the picture appear again. Another interesting thing: both monitors support 60hz and 75hz, but primary monitor works fine no matter what, but the second needs to stay in 60hz mode to avoid this issue. Any ideas whats happening?

submitted by /u/renox92
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